Vendors of Time Products

Last update: June 15, 2026 17:32 UTC (dfe674524)

Inclusion on this list does not constitute an endorsement of the vendor or their products by either Network Time Foundation or the NTP Project. Contact the webmaster to add or edit a vendor description. To learn more about the benefits of institutional membership, visit Network Time Foundation.

Network Time Foundation Institutional Members

• EndRun Technologies ASSOCIATE
  since 2018

  A manufacturer of precision timing products including Network Time Servers using either GPS or CDMA as time synchronization sources. Indoor antenna installation is standard with CDMA.

• Meinberg Radio Clocks PREMIER
  since 2011

  A manufacturer of NTP refclocks like GPS and standalone NTP-compatible time server appliances with integrated GPS, IRIG, PTP/IEEE1588 or DCF77 reference clocks. If you need a refclock or a NTP server “out-of-the-box”.

• Microchip CONTRIBUTOR
  since 2014

  A manufacturer of comprehensive network time synchronization solutions that include dedicated network time servers and the necessary synchronization, management and monitoring software to synchronize time on IT devices such as workstations, servers and routers.

• Safran ASSOCIATE
  since 2016

  A manufacturer of GPS-based time synchronization devices: secure NTP servers, wired, wireless and Ethernet display clocks, master clocks for public safety and precise frequency references.

Non-Member Vendors

• Arbiter Systems

  A manufacturer of precision GNSS synchronized timing products (NTP, PTP, IRIG-B, and more) and power measurement solutions (PMU, synchrophasor, power, voltage, current, harmonics, and more).

• ARF Technologies

  Arf Technologies develops high-precision IEEE 1588v2 PTP and NTP time synchronization solutions for power utilities, industrial automation, transportation, data centers, and telecom networks. The Synchronos 700-M Series provides microsecond-level accuracy with GNSS-disciplined timing, hardware-timestamped PTP Grandmaster operation, IRIG-B / PPS / ToD outputs, redundant power options, and a secure web-based management interface. Designed for harsh industrial environments, the 700-M platform supports utility and telecom PTP profiles, holdover options, and advanced monitoring features.

• ArkTime

  Providers of correct time solutions for PCs, network servers, GPS based NTP time servers, and wall clocks.

• ELPROMA

  EU manufacturer of precision NTP time servers and custom build time systems, including monitoring and remote time auditing.

• ESE

  A manufacturer of precision timing, master clock, and signal distribution products for broadcast, communication and military applications. NTP related products include GPS, ESE/SMTPE/EBU, and ASCII based time servers.

• Galleon Systems

  Time Synchronisation specialists. Galleon provides a wide range of NTP servers for time synchronisation of computer systems across the world. Based in the UK and US, Galleon also sells a range of Atomic and digital clocks suitable for all types of environments.

• hopf Elektronik

  A German manufacturer of Industrial Timing Solutions since 1972. hopf provides a wide range of Master Clocks with integrated GPS, IRIG-B, DCF77 or NTP reference clocks and NTP time servers for synchronization of NTP/SNTP (IEC61850), IRIG-B, DCF77, and other industrial and network appliances. hopf offers standard and customized solutions for accurate timing.

• Oscilloquartz SA

  A manufacturer of network time and frequency solutions as well as NTP time servers with integrated single or dual GPS receivers to synchronize any networks requiring reliability and security.

• Polynet Ltd

  A manufacturer of network time and frequency solutions as well as NTP servers and PTP servers, with integrated GNSS receivers and rubidium modules.

• Softros Systems

  Since 2000, specializes in developing time synchronization software package that includes ntp server and ntp client applications for Windows.

• TimeTools

  A UK manufacturer of computer and computer network time synchronisation devices. Solutions include dedicated ntp servers and ntp reference clock time servers for PCs.

• World Time Solutions

  A manufacturer of precision time synchronization systems: high bandwidth GPS time servers, secure dual source network time servers and OEM/custom timing solutions.